Improvement in bran-dusters



HUNTLEY & BABCOCK.

Bran Duster.

Ptented May 12, 18631 No. 38,484.v

WA, 65j? @www 9j UNITED .STATES WILLIAM W. HUNTLEY AND ALPHEUS BABCOCK, OF SILVER CREEK, N. Y. j

PATENT OFFICE.

IMPROVEMENT IN ERAN-DUSTERS.

Specification forming part of Letters Patent No. 38,484, dated May l2, 1863.

-.To a/ZZ whom t may concern:

Be it known that we, WILLIAM W. HUNT- LEY and ALPI-anus BAncooK, both of Silver Creek, in the county of Chautauqua and State of New York, have invented a new and Improved Bran-Duster; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification', in which- Figure l is a vertical diametrical section through our improved machine. Fig. 2 is a horizontal section through the brush-cylinder and the brushstocks. Fig. 3 is a perspective view showing the mode of connecting the brushes or dusters to the central shaft and adjusting the brushes thereon.

Similar letters of reference indicate corresponding parts in the several figures.

This invention has for its object the separation of flour from the bran in a very simple and efficient manner.

It consists in combining with a series of extensible dusting-brushes,arranged Within the gauze or dusting cylinder, as will be hereinafter shown, a rotating-plate which is placed below the dusting-cylinder, and by itscentrifugal force impels the separated iiour, which falls upon it, to its circumference and thence from the machine, as will be hereinafter described and represented.

To enable others skilled in the art to make and use our invention, we will proceed to describe its construction and operation.

In the accompanying drawings, A represents the chest within which the dusting of the bran is effected. This chest is cylindrical and supported in a vertical position in the usual or in any suitable manner. B B are the heads of this cylinder A, one of which, B, is the top, while the other, B', serves as the bottom. This bottom B is nearly equal in its diameter' to the interior diameter of the bottom of the cylinder within which it is arranged, as shown in Fig. 2, and this circular bottom is secured, by means of anges a, to

the central shaft or spindle, C, and rotates with this spindle, as will be hereinafter described. The fla-t horizontal ring D, together with the upper head, B, is secured tightly to the case A by means of the tie-rods b b, which pass through eyes projecting from the ring and head, respectively, and receive confining-nuts on their ends. The spindle C, which passes through the axis of the cylinder A, is stepped in a bearing in the bridge-tree A and turns in the iournalbox B2 in the head B, which box is made large enough also to receive a verticallysliding collar, H, Figs. l and 3, to which the extension-arms, which operate upon the brush-stocks, are pivoted, as will be hereinafter described.

Arranged within, and concentric with the cylinder A, is the dusting-cylinder for separating the flour from the bran. This (luster is stationary, and consists of the usual open slatted-frame composed of fiat slats or ribs d d d, arranged around the central shaft, C, at

regular'intervals apart and parallel with this shaft, and secured at their upper ends to the open ring or hoop F, and at their lower ends to the closed hoop F. The gauze is secured around the inside of the ribs d d, forming a cylinder which is open at top and closed at its bottom by the plate G, upon which the bran falls and from which it is discharged from the machine through the inclined spout G. Within this gauze cylinder or frameE the brushes are arranged for dusting the bran and brushing the fine iiour through the interstices ofthe gauze, leaving the bran within the cylinder E to pass out at the opening G. These brushes are affixed to the stocks e e e, which are pivoted at their lowermost ends to the radial arms fff, which are fixed to the spindle O near the bottom of the cylinder E, as shown in Figs. 1 and 2. The upper ends of these brush-stocks e e e are pivoted to the jointed arms g g g, which are themselves pivoted to the anges g g g that are formed on the bottom of the sliding collar H. This collar is a tube encompassing the spindle G, and projecting a suitable distance through its bearing-box B2 to receive a handwheel or other suitable device for adjusting it up or down While the machine is in operation. The forked arms h h It are secured to the shaft C, and the forks embrace the brush-stocks e, and allow them to be distended or contracted for the purpose of adjusting the brushes with reference to the surface of the wiregauze cylinder and thereby regulating the operation of these brushes upon the bran. If it is desirable the brush-stocks e e e may be connected at their lower ends to extension-arms, instead of being pivoted, as above described,

When the brush-stocks will receive a parallel adjustment and the ends ot" the brushes Will al1 be blought to bear upon the surface of the Wire-gauze equally. In the present arrangement, Where only one set of extensionarms ure used, the upper ends of the brushstocks only are adjustable, while the lower brushes remain nearly at the same distance from the gauze-cylinder.

The operation of our machine is as follows: Bran, as it comes from the stones mixed with lour, is supplied to the machine through the openings k k in the head B, and the machine being set in motion by giving the spindle C arapid rotation, the bran is acted upon by the brushes, and its ne iiour brushed or dusted through the fine meshes of the guaze surrounding the brushes into the receptacle between the casing A and the dustingcylinder. It thence falls down upon the rotating ioor or circular bottom B', which throws it toward the circumference of this door and discharges the tlour finally through the tangential openingi. (Shown in Figl.) Thebran, during this operation, falls upon the bottom G- of the dusting-cylinder and is discharged through the spout G. The bottom ofthe rotating flour-discharger B is furnished at its circumference with a number of radial ribs, n n, which scrape the surface of the ring D and prevent an accumulation of flour at this point. These ribs n n keep the surface ot the ring D clear and prevent any liability of the discharger getting clogged. They need not touch the ring, but skim over its surface.

The adjustment of the brushes is effected, as l have above described, by simply giving a vertical ymovement to the tubular collar H, regulated by a device which will be applied on top of the machine, so that it will not be necessary to stop the motion of the brushes to adjust them to any desired degree.

Having thus described our invention, what We claim as new, and desire to secure by Letters Patent, is-

1. The disk flour-discharger made fast on the brush-shaft, arranged below the dustingcylinder and above the annular plate D of the the casing, substantially as and for the purpose set forth. l

2. The combination of the disk Hour-discharger, annular plate D, and Scrapers n n, substantially as and for the purpose set forth.

3. The arrangement of the disk flour-discharger, adjustable levers or arms g g, sliding collar H, dusting-cylinder E, and casing A, all united substantially as described.

WVM. W. HUNTLEY. ALPHEUS BABGOGK. Witnesses GEO. A. MARTI?, S. J. Gnus. 

